//*-- bars --*\\
.icono-bars{
    width: @20;
    height: @2;
    box-shadow: inset 0 0 0 @32, 0 -1*@6, 0 @6;
    margin: @16 @7;
}
.icono-hamburger{
    &:extend(.icono-bars);//will be deprecate
}